--- product_id: 1490712 title: "Rain-X Washer Fluid Additive" brand: "rain-x" price: "KD 6.10" currency: KWD in_stock: true reviews_count: 13 category: "Rain X" url: https://www.desertcart.com.kw/products/1490712-rain-x-washer-fluid-additive store_origin: KW region: Kuwait --- # 16.9 fl. oz. concentrated additive Prevents sleet, snow & ice buildup Advanced water-beading tech Rain-X Washer Fluid Additive **Brand:** rain-x **Price:** KD 6.10 **Availability:** ✅ In Stock ## Summary > 🌧️ Drive Clear, Drive Confident — Never Miss a Moment! ## Quick Answers - **What is this?** Rain-X Washer Fluid Additive by rain-x - **How much does it cost?** KD 6.10 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/1490712-rain-x-washer-fluid-additive) ## Best For - rain-x enthusiasts ## Why This Product - Trusted rain-x brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-Weather Warrior:** Effectively repels sleet, snow, ice, bugs, and road spray to keep your windshield spotless in any condition. - • **Cost-Effective Clarity:** One 16.9 fl. oz. bottle treats up to 4 gallons of fluid, delivering premium performance without premium price. - • **Effortless Application:** Simply add to your existing washer fluid—no complicated setup, just instant upgrade. - • **Millennial-Approved Drive:** Compatible with modern vehicles like Tesla Model Y, ensuring smooth wiper operation and zero chatter. - • **Crystal-Clear Vision, Always:** Transforms any washer fluid with Rain-X’s signature water-beading technology for streak-free clarity. ## Overview Rain-X RX11806D Washer Fluid Additive is a 16.9 fl. oz. unscented, alcohol-free formula designed to enhance any windshield washer fluid with advanced water-beading technology. It improves visibility by preventing and removing sleet, snow, ice, bugs, and road spray, ensuring a streak-free, crystal-clear windshield. Easy to use and highly cost-effective, it’s trusted by thousands and compatible with modern vehicles for a safer, clearer drive. ## Description Simply add Rain‑X Washer Fluid Additive to water or any windshield washer fluid to apply Rain‑X technology. Review: Excellent product helps keep the windshield streak free & the rain drop bead up. - Works very well to supplement washer fluid. 👍 Review: Works brilliantly paired with SONAX Clear View - Used together (Rain-X + SONAX Clear View 1:100), my 2023 Model Y’s windshield went from dusty/filmy to crystal clear after one wipe—exactly what the pics show (before / mix / after). Beads water nicely, cuts road film, and played fine with the OEM wipers. Pros Instant clarity; no smearing Strong water beading for rain driving Cost-effective: small amounts treat a lot of fluid Tesla Y compatible (no chatter from my blades) Cons Add too much and you can get light residue—measure your mix My mix (works great): SONAX Clear View: 1:100 (≈25 ml per 2.5 L / ~0.85 fl oz per 2.6 qt) Rain-X Additive: ~4–4.5 fl oz per gallon of water (the 16.9 oz bottle treats ~4 gal) Tips Start conservatively on Rain-X; you can add more if needed. Top up with distilled water when possible. If switching from another fluid, run a few sprays to purge the old mix. Bottom line: this combo is an easy, inexpensive one-wipe to crystal-clear upgrade. ## Features - Add to existing washer fluid - Applies water beading technology - Enhances driving visibility - Helps prevent and remove sleet, snow, ice, bugs and road spray from sticking to glass - Improves cleaning ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000BPTVTK | | Best Sellers Rank | #1,065 in Automotive ( See Top 100 in Automotive ) #7 in Windshield Washer Fluids | | Brand | Rain-X | | Brand Name | Rain-X | | Customer Reviews | 4.6 out of 5 stars 9,308 Reviews | | Global Trade Identification Number | 00079118118013 | | Included Components | 1 bottle | | Item Form | Spray | | Item Type Name | Rain-X RX11806D Washer Fluid Additive - 16.9 fl. oz. | | Item Volume | 16.9 fluid ounces | | Item Weight | 567 g | | Manufacturer | Rain-X | | Material Feature | Unscented | | Material Features | Unscented | | Material Type Free | Alcohol Free | | Model Number | RX11806D | | Number of Items | 1 | | Part Number | RX11806D | | Product Benefits | Streak Free | | Recommended Uses For Product | Fleet and plant maintenance. | | Scent | Unscented | | Size | 16.9 Fl Oz (Pack of 1) | | Special Features | Streak Free | | Specific Uses For Product | Windshield | | Surface Recommendation | Glass | | UPC | 079118118013 | | Unit Count | 16.9 Fluid Ounces | | Warranty Description | 30 Days | ## Product Details - **Brand:** Rain-X - **Item Form:** Spray - **Material Feature:** Unscented - **Scent:** Unscented - **Specific Uses For Product:** Windshield ## Images ![Rain-X Washer Fluid Additive - Image 1](https://m.media-amazon.com/images/I/51vzT4-aI6L.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: I love the how well the standalone gallon rain-x jugs work.will adding this to non-rain-x fluid make it work just as well as standalone? or not quite?** A: be cautious i had a washer fluid i added this to and 24 hours later the near as i could tell the rainx reacted with the blue dye in the washer fluid and i had clear washer fluid with a layer of blue sticky slime floating on top of it i have only had it happen once but might mix this in a jug with you preferred brand of washer fluid and let it set for a day before you add it to your vehicle reservoir to make sure it wont react the same way **Q: Does this product work well with de-icer washer fluid? Or should I stick to the original glass treatment?** A: It will work with anything, if you want deicing, you must use it with a deicing washer fluid as a base, or just put 1/2 a bottle of rubbing alcohol in a gallon of water then add 4 oz RainX... the RainX on it's own does a great job as a cleaning fluid, but will freeze without some kind of additive **Q: Everywhere I look it says don’t add just water to the tank can you or can you not just mix with water?** A: Yes, you can mix it with plain water - it says so right in the description. I suggest using distilled water though, because the minerals in tap water might eventually block up your lines. **Q: Does this leave hard-to-remove stains on car? Clog windshield washer nozzles? Leave a hard-to-remove dirty film in windshield corners?** A: Yes! Has left bad film and water spots similar to hard water spots on the parts of the glass the wipers don't reach. Washed my windshield at the gas station and it did not come off. I am pissed. Probably going to return product and contact rain x for how to clean my windshield. Also leaves a hard water like stain in a line where right side wiper stops in middle of windshield. I do not recommend this product . ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent product helps keep the windshield streak free & the rain drop bead up. *by D***I on July 5, 2026* Works very well to supplement washer fluid. 👍 ### ⭐⭐⭐⭐⭐ Works brilliantly paired with SONAX Clear View *by Z***S on December 13, 2025* Used together (Rain-X + SONAX Clear View 1:100), my 2023 Model Y’s windshield went from dusty/filmy to crystal clear after one wipe—exactly what the pics show (before / mix / after). Beads water nicely, cuts road film, and played fine with the OEM wipers. Pros Instant clarity; no smearing Strong water beading for rain driving Cost-effective: small amounts treat a lot of fluid Tesla Y compatible (no chatter from my blades) Cons Add too much and you can get light residue—measure your mix My mix (works great): SONAX Clear View: 1:100 (≈25 ml per 2.5 L / ~0.85 fl oz per 2.6 qt) Rain-X Additive: ~4–4.5 fl oz per gallon of water (the 16.9 oz bottle treats ~4 gal) Tips Start conservatively on Rain-X; you can add more if needed. Top up with distilled water when possible. If switching from another fluid, run a few sprays to purge the old mix. Bottom line: this combo is an easy, inexpensive one-wipe to crystal-clear upgrade. ### ⭐⭐⭐⭐⭐ Great Product Especially with other Rain-X Prodcits *by V***R on July 2, 2026* Great product, works really well when having the main Rain-X application on the windshield. Used it on my 14 hour trip, rained a few times. Kicked on the wipers and fluid when it was raining quite bad and it helped fling off the droplets more. ## Frequently Bought Together - Rain-X RX11806D Washer Fluid Additive-16.9 fl. oz, 500. ml - Rain-X 800002250 Glass Treatment Trigger, 16 Fl Oz - Exterior Glass Treatment to Dramatically Improve Wet Weather Driving Visibility During All Weather Conditions - Rain-X 5071268 2-in-1 Glass Cleaner and Rain Repellant, 23 oz. (Pack of 1) - Provides a Streak-Free Clean for Automotive Glass While Preventing Sleet, Snow, Ice, and Road Spray Build Up --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.kw/products/1490712-rain-x-washer-fluid-additive](https://www.desertcart.com.kw/products/1490712-rain-x-washer-fluid-additive) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-08-20*